[Leetcode] 27 - Remove Element

原题链接：https://oj.leetcode.com/problems/remove-element/

很简单一道题。。。

class Solution {
public:
int removeElement(int A[], int n, int elem) {
int front = 0;
int idx = 0;
while (idx < n) {
if (A[idx] != elem) {
A[front] = A[idx];
++front;
}
++idx;
}

return front;
}
};